Custom command to automatically "Break at Point" everywhere on a drawing

[whackoprogrammer760234]

Hey all,

I need a custom command that would search through the drawing and break any line or arc segments if there is a coincident endpoint of another segment that lies on the segment.

The existing macro in the ribbon is "Break at Point", it's a special case of the BREAK command.

I need a custom AutoLISP command to automatically perform this everywhere on the entire drawing.

This can be simplified by assuming that all segments are on the same layer. Bonus points if they don't have to be on the same layer, but not required.

How would I approach this challenge? Anyone want a go at it?

Insight is appreciated.

Thanks!

[devitg.89838]

Please upload a sample dwg .
Would it only break if the end point lay on the other segment. ?

[whackoprogrammer760234]

Please upload a sample dwg .
Would it only break if the end point lay on the other segment. ?

I have uploaded an example DWG with explanation. When the AutoLISP command is invoked there should be 8 "Break at Point" actions taking place.

Insight is appreciated.

Thanks!

[Tom Beauford]

Break All or Some by CAB is the most complete set of BREAK tools I know of:
https://www.theswamp.org/index.php?topic=10370.0

[whackoprogrammer760234]

Break All or Some by CAB is the most complete set of BREAK tools I know of:
https://www.theswamp.org/index.php?topic=10370.0

I tried out the tool but it's not breaking at points on segment. Might be useful as a programming reference, but otherwise it doesn't do what I need.

[rkmcswain]

I have uploaded an example DWG with explanation. When the AutoLISP command is invoked there should be 8 "Break at Point" actions taking place.

If by chance, you have AutoCAD MAP or Civil 3D (which is built on MAP) - then the built-in MAPCLEAN command will do this for you.

[whackoprogrammer760234]

If by chance, you have AutoCAD MAP or Civil 3D (which is built on MAP) - then the built-in MAPCLEAN command will do this for you.

Sadly, no. Just the regular AutoCAD 2018. No MAPCLEAN command on mine.

[Tom Beauford]

I tried out the tool but it's not breaking at points on segment. Might be useful as a programming reference, but otherwise it doesn't do what I need.

Worked on your example.dwg, had to select the two lines to break and the four lines to break them. Selecting All prior to running the command then Previous when prompted by BreakAll should work for the whole drawing. What did it do when you tried it?